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JACOBS Drill Chuck Key: Thumb Handle, K3C - Thumb-Handle Keys for Jacobs Drill Chucks
JACOBSThumb-Handle Keys for Jacobs Drill Chucks

JACOBS Drill Chuck Key: Thumb Handle, K3C

The JACOBS Drill Chuck Key with Thumb Handle, model K3C, is a thumb-handle key designed for Jacobs drill chucks. It features a 5/16 in pilot and is identified by manufacturer part number JCM3653P. This key is…

SKU 3G-OTH-284950

Brand
JACOBS
Item
Drill Chuck Key: Thumb Handle, K3C
Category
Thumb-Handle Keys for Jacobs Drill Chucks
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Technical Specifications

JACOBS
Manufacturer Part Number
JCM3653P
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JACOBS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JACOBS Drill Chuck Key with Thumb Handle, model K3C, is a thumb-handle key designed for Jacobs drill chucks. It features a 5/16 in pilot and is identified by manufacturer part number JCM3653P. This key is compatible with JACOBS 633C chucks.

Frequently Asked Questions

What is the JACOBS Drill Chuck Key K3C used for?

The JACOBS Drill Chuck Key K3C is used to tighten or loosen drill chucks on industrial drilling equipment. It is specifically designed for JACOBS 633C chucks and features a thumb handle for manual operation. This key is essential for securing drill bits in machining, metalworking, and woodworking applications.

What are the specifications of the JACOBS Drill Chuck Key K3C?

The JACOBS Drill Chuck Key K3C has a 5/16 in pilot and is compatible with JACOBS 633C chucks. Its manufacturer part number is JCM3653P. The thumb-handle design allows for easy manual tightening and loosening. This key is built for durability in industrial environments.

Where to buy the JACOBS Drill Chuck Key K3C worldwide?

You can source the JACOBS Drill Chuck Key K3C worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. 3G Electric supplies genuine JACOBS parts like the JCM3653P key.

How to select the correct JACOBS drill chuck key?

To select the correct JACOBS drill chuck key, match the pilot size and chuck model. The K3C key has a 5/16 in pilot and fits JACOBS 633C chucks. Verify your chuck's model number and pilot diameter before ordering. For assistance, contact 3G Electric, which supplies JACOBS keys and can help identify the right part.

Used in

Common applications for JACOBS
General machining – JACOBS keyed drill chucks (e.g., MPN JCM6214, JT2 mount) for manual drill presses and milling machines.
Production drilling – JACOBS high-precision keyless chucks (e.g., MPN 31415, MT4) for automated CNC drilling centers.
Corrosive environment toolholding – JACOBS stainless steel chucks (e.g., MPN JCM6624Z) for food processing or chemical plant maintenance.
Spindle adaptation – JACOBS Morse taper sleeves (e.g., MPN 30427DN) for retrofitting older machine tools with modern chucks.
Portable drilling – JACOBS thread-mount chucks (e.g., MPN JCM6204, 5/16-24) for hand-held electric drills and magnetic base drills.

JACOBS Products

3G Electric supplies JACOBS thumb-handle keys for jacobs drill chucks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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